Great card almost all of the time; especially if used on a minion that has attacked and is damaged. Whatever is recombobulated is restored to full health. Pretty great to play after an Argent Commander or similar has charged, allowing the Commander to probably transform into something with higher health.

You are completely right. If the Tank doesn't get rekt by a typical Polymorph or BGH, it will survive to make at least one favorable trade and get transformed into Ragnaros or Kel'Thuzad often. I play a cheap deck that's using common cards to transform 6, 7 and 8 mana drops into very good late game minions. And Pandas in case you need to take advantage of their battlecries. ^^